CNC Machining for Semiconductor Vacuum Chamber Components

Semiconductor Equipment Manufacturer, USA, California

Aluminum vacuum chamber component machining for semiconductor equipment, with attention to setup sequence, surface requirements, and inspection.

Account owner: PiPrecision Engineering Team

The Challenge

The aluminum vacuum chamber components required machining and inspection to be considered alongside the surface and dimensional requirements on the drawing. The review needed to identify the mating features, measurement conditions, and any secondary processes involved in meeting those requirements. Terms such as sub-micron tolerance or optical flatness do not define an inspection plan on their own. The feature, acceptance limit, measuring method, and conditions must be specified before an achievable result can be agreed.

Our Solution

The manufacturing approach considered machining sequence and thermal effects when planning the aluminum components. The inspection requirements were reviewed against the individual features rather than stated as one precision figure for the entire component. Where a drawing calls for a particular surface finish, flatness limit, or vacuum-related test, the process and evidence required are agreed for that feature. Integration into a lithography system and system performance remain separate from dimensional acceptance of the machined part.